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AMD Epyc-2 Nodes ("Rome") available on HPC

Since December, NEMO offers four nodes with the new AMD Epyc-2 Server Processors ("Rome"). Each node has 2x64 cores running at 2.25 GHz and 512GB RAM. The cores can boost to up to 3.4GHz depending on the overall workload. Additionally, each AMD node is fitted with an Nvidia Tesla T4 GPU.

The nodes are available for evaluation and benchmarking purposes. In contrast to the standard NEMO nodes, the AMD nodes are running in shared mode, meaning there might be jobs of other users running at the same time. The AMD nodes have to be explicitly requested in the job submission script.

Example jobs (other combinations possible):

msub -l feature=amd -I                          # interactive job
msub -l nodes=1:ppn=128:gpus=1,feature=amd ...  # batch job one node 128 cores incl. one Tesla T4
msub -l nodes=4:ppn=128,feature=amd ...         # all four nodes with 128 cores each

At the moment, simultaneous multithreading ("hyperthreading") is disabled. This might be enabled in the future.